Metal-planing machine



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N-PETERS. PHOTELLITHOGRAPHER WASHINGTON D C 'UNTTED STATES PATENT OFFTOE.

MOSES ALLAN, OF UTICA, NEXV YORK.

METAL-PLANING MACHINE.

Speccaton of Letters Patent No. 26,151, dated November 22 18.59.

To all whom fit may concern:

Be it known that I, Mosns ALLAN, of the city of Utica, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Iron- Planing Machines; and I do hereby declare that the following is a full, clear, and exact description of the same, with the operation thereof, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1 is a perspective elevation of the ordinary planing machine, with my improvement attached thereto, as when doing the work designed to be accomplished. Fig. 2 shows the several parts of the fixture constituting my improvement and connected as when attached to the machine for use; and Figs. 3 and i are parts of this fixture, shown on an enlarged scale to aid in their illustration.

The nature of my improvement consists in the construction of certain mechanical parts, and so attaching and connecting them with the ordinary planing machine as to enable the operator by the use of this machine to dress off to the proper shape and curve the sides of the teeth, or cogs of iron wheels; a labor which has heretofore been usually done by the use of the hand tile, thus enabling a single hand by the use of the planing machine to do the work of several hands laboring without it, and at the same time doing the work much better.

A, B, (Fig. 1,) is the ordinary planing machine. B, O, as a part of the machine, is the usual sliding head, and bears the tool stock D. The main agency in my improvement is seen at F, E, in connection with the tool stock D; and these same new parts are again shown separately on an enlarged scale in Fig. 2.

The tool stock D, (Fig. l) of the ordinary planing machine it is well known is so attached to the sliding head B, C, as to be capable of being inclined so as to set the cutting tool O at any angle, and when fixed in the required position the tool stock has al free lateral movement. The tool stock has also, by the ordinary operation of the machine, a vertical movement which lets down the cutting tool, setting it deeper and deeper at the commencement of every cut. Now as the sides of wheel cogs are usually of an oval or curved shape, and not straight; the

cutting tool in descending to dress ott the sides of these cogs, must not move vertically, but in a curved line, corresponding to the desired shape of the toot-h. I have .there-` fore for this purpose contrived that the cutn ting tool in descending at the side of the tooth, shall descend in a curved line exactly sui-ted to form the sides of the teeth. rThis I do `by the construction of the Aapparatus shown in Fig. 2, and also seen in connection wit-h the machine at F, E, g, (Fig. 1.) This apparatus (Fig. 2), consists of the trame F, lit-ted to slide on the ways of the sliding head B, O, (Fig. 1), in the manner of the frame which holds the tool stock D. To this is bolted the pla-te E, by a screw bolt as seen at 7.2. In ythe plate E is `the curved slot e, the curvature of which corresponds to that of `the sides of the wheel cogs to be dressed. The frame F, with the plate E, bolted to it (Fig.2) is thus run on to the ways of the sliding head B, C, as seen at F, E, (Fig. 1.)

The plate g, (Figs. 1 and 2,) has aiixed to it a slot pin f, iitted to move in the slot e. The apparatus is connected with the tool stock by setting the pin f, in the slot c, and then bolting up the plate g, by a suitable lange to the side of the tool stock, as shown at h, h, (Fig. 1,) leaving a space between the frame of the tool stock and the frame F, so that the tool stock may have the required lateral movement. This being done, and the cutting tool o being set to the required position, the Jframe 'F is immovably iixed to the sliding head B, O, by means of the set screw z'. The nut Z is now taken oft', which in ordinary use, belongs on the end m, of the screw shaft n. This allows the tool stock a free lateral movement, controlled only, as the tool O, descends, by the movement of the pin f, in the curved slot c.

It is now evident that in the ordinary operation of the machine the point of the cutting tool O, in descending will describe a line, in the formation of the side of the wheel cog, corresponding to the curvature of the slot e, in which the pin f moves, and thus the sides of wheel cogs are dressed by the use of the ordinary iron planing machine with my improvement attached, to any shape or curvature desired, by adapting the slot e, to the desired shape, or curvature.

Fig. 3, is simply an enlarged view of the plate E, (Figs. 1 and 2), showing in full size that plate with its curved slot e, and the bolt hole la, by Which it .is bolted to the frame F.

Fig. 4, is a separate view of the curved slot e, With the slot pin j", described Within it.

In order to sustain and govern the Wheel Gr, (Fig. l), in a proper position While its cogs are dressed, I set tWo upright standards H and I on the top of the machine carriage L; these standards having suitable bearings at the top for the axle of the Wheel, and the sliding head B, C, and With it the tool O, are adjusted to the desired elevation, in the usual Way. The disk M, With its indeX perforations N, is placed upon the shaft U of the Wheel G outside of the bearing, by means of which the revolving of the Wheel G is measured by equal spaces, aecording to the raduation of the Wheel cogs, and the Wheel 1s held in its proper position for each cog by the use of an index pin P, in the usual manner of spacing and cutting gearing teeth by machinery.

The index pin P, is passed through the plate R, the latter being bolted down upon the carriage by a suitable flange, as seen at S, and has the diagonal slot t, covering the breadth of the index perforations N, in the disk, and admitting access of the pin P, to either of the circles of these perforations in the usual manner.

Thus the Work of dressing the oval sides of Wheel cogs is performed on the ordinary planing machine. The work is greatly eX- pedited and at the same time more perfectly one.

What I claim as new, and desire to secure by Letters Patent, is-

l. The construction of the apparatus F, E, g, shown in Fig. 2, and its adaptation to the use of the ordinary planing machine, and its combination therewith as described and for the purposes described.

2. The combination of the bearing stands H, I, and the disk M, with the carriage of the machine, connected and arranged substantially as described, and for the purposes described, the Whole being'constructed, combined and operating substantially in the manner herein set forth.

MOSES ALLAN.

Witnesses WEL BAKER,

DEXTER GILLMORE. 

